its not the orginal tractor axle not even on the inside of the tranny haha its all billet machined parts in there and the axle is a cold rolled steel bar with hub and drive plates (with the correct bolt pattern) welded on
not really something to build wit instructions man. either you know how or you dont haha but if you were to buy all these parts and everything you would be spending abotu how much this one costs, if not more, those polaris struts are hard to find and polaris wants $500 a piece